<template>
  <div class="singer-song">
    <div class="list">
      <van-list
        v-model="loading"
        :finished="finished"
        finished-text="没有更多了"
        @load="onLoad"
      >
        <div v-for="(item, index) in list" :key="index">
          <h4>{{ item.name }}</h4>
          <div class="singer">
            <span v-for="(singer, index) in item.singer" :key="index"
              >{{ singer.name }}
              <span v-show="index != item.singer.length - 1"> / </span>
            </span>
            <span v-show="item.album.name">
              <span>·</span>
              <span>{{ item.album.name }}</span>
            </span>
            <span v-show="item.subtitle">
              <span>·</span>
              <span>{{ item.subtitle }}</span>
            </span>
          </div>
        </div>
      </van-list>
    </div>
  </div>
</template>
<script>
export default {
  props: ["singerId"],
  data() {
    return {
      list: [], //vant的list列表数据
      loading: false,
      finished: false,
      page: 1, //获取api数据的页码
    };
  },
  created() {
    this.getData();
  },
  methods: {
    getData() {
      this.$request("get", "singer/songs", {
        singermid: this.singerId,
        num: 30,
        page: this.page,
      }).then((res) => {
        console.log(res);
        //res.data.list中是分页获取的数据，30个，把这个数据添加到vant的list列表数据中
        this.list = this.list.concat(res.data.list);
        // 加载状态结束
        this.loading = false;
        // 页码自动加1
        this.page++;
        // 数据全部加载完成(如果页码加1之后获取到的data.list的长度为0，代表数据加载完成，没有数据)
        if (res.data.list.length == 0) {
          this.finished = true;
        }
      });
    },
    onLoad() {
      setTimeout(() => {
        this.getData(); // 调用获取分页数据的方法
        this.loading = true; //正在加载
      }, 1000);
    },
  },
};
</script>
<style scoped>
.header > span {
  font-size: 0.9rem;
}
.list h4 {
  text-align: left;
}
.singer {
  text-align: left;
}
.singer span {
  color: rgb(147, 147, 147);
  font-size: 0.8rem;
}
.singer > span:nth-last-child(2) > span:first-child {
  color: red;
  font-weight: 900;
  padding: 0 0.5rem;
}
.singer > span:nth-last-child(1) > span:first-child {
  color: red;
  font-weight: 900;
  padding: 0 0.5rem;
}
.list {
  margin: 0 1rem;
}
</style>
